he says he and his brother tamerlan -- he says brother tamerlan was the mastermind. tsarnaev's initial court appearance was today in his hospital room. he was able to speak one word, no, when asked if he could afford an attorney. he now has a public defender the court found today. he's alert, mentally competent and lucid. joining me is jake tapper live in boston. pretty dramatic developments late in the day here. from what we now believe, dzhokhar tsarnaev may have told the investigators in written answers, is that right? >> reporter: that's right. a u.s. government official tells me that according to these preliminary interviews, preliminary interviews with dzhokhar tsarnaev and the u.s. government is going to have to double back and check all of this information, but according to these preliminary interviews, what dzhokhar tsarnaev is conveying to investigators is the following. one, that there were not foreign terrorist groups involved in this terrorist plot, that it was just the two of them. two, that there was a real online component to this radicalization done